Independent nozzle-valve for hydrants.



No. 799,394. PATENTBD SEPT. 12, 19055.

J. T. LYNCH.

INDEPENDENT NOZZLE VALVE FOR HYDRANTS.

APPLIOATION IILBD JAN. 20, 1905.

Z Ill/ 1% UNITED STATES PATENT OFFICE. v

JOHN T. LYNCH, OF HOLYOKE, MASSACHUSETTS, ASSIGNOR TO HOLYOKE VALVE ANDHYDRANT COMPANY, OF HOLYOKE, MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS.

INDEPENDENT NOZZLE-VALVE FOR HYDRANTS;

Specification of Letters Patent.

Patented Sept. 12, 19U5.

Application filed January 20, 1905. Serial No. 241,921.

of the United States of America, and a resident of Holyoke, in thecounty of Hampden and State of Massachusetts, have invented certain newand useful Improvements in Independent Nozzle-Valves for Hydrants, ofwhich the following is a full, clear, and exact description.

This invention relates to appliances of a novel character for connectionwith the clelivery-nozzles of a hydrant and which may be designated asindependent nozzle-valves. By having a hydrant equipped with these newappliances at the exterior thereof it is possible during the time theregular or main valve of a hydrant is open at the water-maincommunication to have all of the hydrant deliverynozzles under perfectand independent control, so that, for instance, while one line of hoseis connected to one of the independent nozzle-valves and is carrying astream of water therethrough another line of hose may be connected ordisconnected from the other independent nozzlevalve without closing themain hydrant-valve and with the utmost convenience.

It is realized by those familiar with hydrant constructions that owingto the limited space in the head of a hydrant it is impossible toconstruct inside independent valves for the two or more nozzles whichwill be strong enough to withstand the rough usage to which they aresubjected at the time of a fire.

This invention therefore contemplates the combination, with a hydranthaving a plurali'ty of delivery-nozzles, of valved appliances connectedwith the respective nozzles and each comprising a casing having aWaterway therethrough and adapted for hose connection at its outer endand a valve in said casing having an externally-projecting part or stemfor opening and closing the waterway;

and under this invention theindependent nozzle-valve appliance embodiesstructural features whereby when the valve is closed a recess or openingtransversely of the valve (which in the proper positioning of the valvepermits the passage of the Water from the hydrant-nozzle through theappliance to the hose) has its position toward the passage through thehydrant-nozzle and whereby the water which in small quantities may haveremained within the independent nozzle-valve may be drained back intothe hydrant for the avoidance of pocketing or trapping water in thenozzle-valve, with liability that the same may freeze and render thedevice inoperative and valueless in an emergency, and incidental to theconstruction the nozzle-valve is so constructed in respect of thewaterway longitudinally therethrough, the valve seat or chamberintermediate of the length of such waterway, and of the shape orformation of the valve proper as to permit the delivery of a large ormaximum solid stream of water through the appliance when the valve isopen; and the invention includes certain other specific constructionsand formations in the device of the character described, allsubstantially as hereinafter fully described, and set v forth in theclaims.

The improved independent valve-nozzle is illustrated in the accompanyingdrawings, in which, in

Figure 1, a hydrant is shown in elevation and having connected thereontwo of the nozzle-valves. nal section centrally through one of thenozzle-valves on a larger scale than Fig. 1, the

plane of section being indicated by line 2 2 on the first figure. Fig. 3is a central vertical longitudinal section through the nozzle-valve onthe line 3 3, Fig. 2. Fig. 4: is a cross-section as taken through thevalve-casing on the vertical plane of section represented by line 4 4,Fig. 2, the valve-body being shown in elevation, and in Figs. 2, 3, and4 the valve is shown as in its open position. Fig. 5 is a plan view of apacking-washer having circular and concentric corrugations.

Similar characters of reference indicate corresponding partsin all ofthe views.

In the drawings, A represents the upper portion of an ordinaryfire-hydrant having two horizontal and radiating hose-nozzles,con-

Fig. 2 is a horizontallongitudinected with each of which, as may be doneby screw-coupling connections, are theindependent nozzle-valvesC C. Eachnozzle-valve is as to its form from end to end thereof of anapproximately cylindrical shape, with a waterway a therethrough, suchwaterway being intermediately constructed with the cylindricalenlargement 7) for the reception, with a close fit therein, of the bodyD of the valve.

The valve-casing has the screw-threads (Z at its end portion which hasconnection with the hydrant-nozzle B, and its opposite end isconstructed for the coupling therewith of a firehose, which coupling inthe present instance is to be accomplished by screw engagement with thethreads f, and each hose-coupling end of the nozzle-valve is to beclosed when the hydrant is not being used by the screwcap E, connectedby chain g to the nozzle- Valve casing, which has at its bottom adepending eye-provided lug g integrally cast. The base of thevalve-casing, which constitutes the bottom wall it of the enlargedcylindrical chamber, is internally perfectly flat and level and iscentrally formed with a socket i and the upstanding short stud j at apoint eccentrically of such socket, and the valve-receiving chamber 5 isupwardly opened, as shown at 70, the surrounding wall of such openingbeing internally screw-threaded. The valve-casing is externally andlongitudinally ribbed, as shown at m, for strengthening the otherwisecomparatively light casing structure.

The body D is made in the form of a modified cylinder-that is, acomparatively thin upper portion a thereof is a full and truecyperfectly flat and smooth to lit the correspondingly-shaped innersurface of the casing-wall and has the downwardly-projecting centralstud g, which fits in the socket i, and consistent with the formation ofthe valve-body as aforesaid such body has the sidewiseopenedsemicylindrical recess 8, such opening when the valve is closed havingits location to the leftward or toward the hydrant-connecting end of thenozzle-valve casing, and so that any water remaining within thenozzlevalve after the same shall have been closed will flow back intothe hydrant, and inasmuch as the casing has an internal annular wall 2,upstanding from the base and adjacent the junction of the longitudinalwaterway a with the valve-chamber b, which might obstruct the drainageof the water from the nozzle-valve back into the hydrant, adrainagechannel a is made, as shown in Figs. 2, 3, and 4:, through theupstanding wall 6, thereby insuring the desired absolutely completedrainage.

The valve-body has within its bottom the arc-shaped slots '0 concentricwith the axial stud q, upwardly into which engages the aforementionedshortstud j of the casingbase, this interengaging stud and grooveconstituting means for limiting the movements of the valve-body, whichis movable to assume the position (open) shown in the drawings or aclosed position at right angles thereto.

A flat screw-cap Gr, peripherally threaded screw engages into thethreaded upper opening 71:, communicating with the valve-chamber, andbetween the flat under side of the screw-cap and the flat top of thevalve-body a washer J is interposed under compression, such washerhaving a series of circularly-oxtending and concentric corrugations w,so as to give a plurality of circular lines of close bearing against thetop of the valve to prevent the leakage of water in pressure through thenozzle-valve outwardly at the top.- The top cap G being annular permitsthe valvestem L to pass upwardly therethrough and therebeyond to beaccessible for opening and closing the valve. The top cap G has anangular lug 00 extending across the top edge of the wall of the casingsurrounding the capreceiving opening 7 and also extending downwardlyadjacent the outer side of such wall, a set-screw passing through andcarried by said lug constituting simply and efficiently a locking meansfor holding the cap in its properly set-up position against thepacking-washer.

The independent nozzle-valve having the formations and features ofconstruction hereinabove described with particularity and illustrated inthe drawings has the practical advantages sought to be attained by thisinvention as set forth in the statement of the nature and objectthereof.

Having thus described my invention, what I claim, and desire to secureby Letters Patcut, is

An independent hydrant-valve nozzle consisting of a casing, having awaterway from end to end therethrough formed with a central cylindrical,upwardly-opening enlargement, and constructed at one of its ends forscrew connection with the hydrant-nozzle, and at its other end toreceive connection therewith of a hose, and havinga drainage-channelleading from the junction of said enlargement with the hydrant end ofsaid waterway, at the bottom portion, a valve comprising a cylindricalportion fitting in said enlargement and formed with a sidewise-openingrecess, and having an upwardly projecting operatingstem, a cap screwthreading in the upper opening of the casing, and through the centralopening of which the valve-stem projects, and means for limiting therotational movements of the valve-body so that when closed its recessedside is toward said drainage-channel at the hydrant-connecting end ofthe appliance.

Signed by me at Holyoke, Massachusetts, in presence of two subscribingwitnesses.

JOHN T. LYNCH.

\Vitnesses:

JOHN HILDRETH, ANNIE AINsWoR'rH.

